43579 vs BU3521UK Cordless Vacuums

Torn between 43579 and BU3521UK for your next cordless vacuum?

We examine the 43579 – a battery-power vacuum by Quest, comparing runtime, dust tank, and costs, with – BU3521UK by Shark, analysing real-world vacuuming performance.

By assessing these vacuums – the 43579 and BU3521UK from QUEST and SHARK, you get the best floorcare machine.

Best Cordless Vacuum Pick

QUEST 43579 vs SHARK BU3521UK – key Specifications

43579 and BU3521UK Cordless Battery Run Time

QUEST Handheld cordless vacuums, like the 43579, provides lightweight portability without mains cables. BU3521UK Stick is also cordlessly powered by a SHARK rechargeable battery.

The Shark BU3521UK has a battery supply runtime of 40 minutes of cleaning, compared to the Quest 43579 which has 40 minutes life.

• QUEST 43579 Runtime: 40 mins continuous vacuuming
• SHARK BU3521UK Runtime: 40 mins continuous vacuuming

Charging times between the 43579 and BU3521UK varies – check manual.

Cordless Vacuum Dust Tank Capacity

Both Quest 43579 and Shark BU3521UK are bagless, storing dust, hairs, dirt, and debris inside a sealed 0.65 litre and 0.42 litre tank, respectively. The BU3521UK by SHARK holds up to 0.42 Litre of compressed dirty particles. The 43579 by QUEST has a capable capacity of 0.65 litre for manual disposable.

• 43579 onboard dirt/dust tank size: 0.65L
• BU3521UK onboard dirt/dust tank size: 0.42L

Floor Cleaning Types

Quest’s 43579 and Shark’s BU3521UK brush heads are effective on every surface – carpets & deep-pile rugs, hard floors (laminate, wood, tiles), vinyl, even upholstery, and stairs.

Their only limitation is the BU3521UK and 43579 can’t vacuum liquids. For this, a SHARK or QUEST ‘wet and dry’ vacuum is needed.

Most Quest and Shark battery powered vacuums include accessories. Check 43579 or BU3521UK manual for specifications and attachments.

Vacuum Filtration

The BU3521UK and QUEST 43579 include effective filters to capture dust, dander, pollen, hairs, and fibres.

QUEST and SHARK use HEPA, foam, or cloth, filters. 43579 and BU3521UK maintain suction and clean exhaust air.

SHARK and QUEST Reviews

Combined feedback from 22 reviewers shows the 43579 with a rating of 4.4/5 stars, and the BU3521UK vacuum gains a 4.4/5 average from 128 reviews, showing comparable reliability results.

Brand	Model	Runtime	Weight	Tank	Best Price
QUEST	43579	40 M	2.8	0.65L	£125.00
SHARK	BU3521UK	40 M	2.7	0.42L	£349.99